Pith Number

pith:EE4PK3AR

pith:2014:EE4PK3ARU5RYPJIKKFTF26KLAY

not attested not anchored not stored refs pending

Coulomb drag devices: electric solar wind sail propulsion and ionospheric deorbiting

Pekka Janhunen

arxiv:1404.7430 v2 · 2014-04-29 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EE4PK3ARU5RYPJIKKFTF26KLAY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:41:41.526499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2138f56c11a76387a50a51665d794b061be5c6846436542789586eced0356d78

Aliases

arxiv: 1404.7430 · arxiv_version: 1404.7430v2 · doi: 10.48550/arxiv.1404.7430 · pith_short_12: EE4PK3ARU5RY · pith_short_16: EE4PK3ARU5RYPJIK · pith_short_8: EE4PK3AR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EE4PK3ARU5RYPJIKKFTF26KLAY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2138f56c11a76387a50a51665d794b061be5c6846436542789586eced0356d78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "165acd73e059ed94d0313aea55f27cf3cdeab8862f2bba9ebf732539da0f7b6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-04-29T16:56:27Z",
    "title_canon_sha256": "b9fe555d351a451bbdc878f3748ea3baee4423e1502b2f605568ebb17c577fd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7430",
    "kind": "arxiv",
    "version": 2
  }
}